When you're a tennis star like Venus Williams, you need some serious fuel. The athlete has won four Olympic gold medals, has seven Grand Slam singles titles to her name, and once had a 35-match winning streak. And she probably wasn't doing all that on an empty stomach.

So what does an incredibly accomplished tennis star like Venus Williams eat in a day? Thanks to Cosmopolitan, we now know. So if you're searching for a diet that will help you tear up the tennis courts—or at least help you eat like someone who does—look no further. Here, what Venus Williams ate during the days leading up to her first match in the U.S. Open. (And yes, if you were wondering, she *killed* that match.)

It's hard for her to eat in the morning, but she makes sure to start her day with fruit or juice anyway.

"Early in the morning, it's super tough for me to eat right away," Williams told Cosmopolitan. "But I still need energy for practice." This usually means a green juice, a protein smoothie, or some fruit. But depending on her schedule, she'll switch it up. She enjoys an egg-white omelette with tomato and cheese every now and then, and she'll also treat herself to some granola with almond milk. All high in protein—and all great ways to start the day.

She often lunches at vegan restaurants.

Williams said lunch is typically her biggest meal of the day, and she makes sure to pack in the nutrients. Some days she'll eat at one of her favorite vegan spots, Christopher's Kitchen, where she gets lentils, quinoa, and a strawberry milkshake with protein powder. Other days she'll stop into the Little Beet for sweet potatoes, green beans, cabbage, and soba noodles.

On days when she wants something a little heavier, she'll load up on brown rice, beans, and grilled shrimp. "I always crave sweets," she said. So she'll drink some pineapple, orange, and strawberry juice to satisfy her sweet tooth.

Her snacks are very, very green.

Her go-to snacks? Green juice and kale chips. Other times, she'll opt for something less green, though. She loves Nature's Addict apple, passion fruit, and mango fruit snacks. And she also enjoys munching on dates and cashews.

She makes a mean kale and chicken breast salad.

Williams is a big salad eater. The athlete said she typically makes herself a salad for dinner, but keeps things interesting by mixing up her ingredients. One of her best combinations is a kale salad with chicken breast, fresh ginger, garlic, pepper, and orange and lemon juice. She often cooks this for her dad, who's on a low-sodium diet. "My dad loves to eat, and he loves everything I make!" she said.

Even on low-key nights, she can mix up something delicious. After matches, she throws together greens, tomatoes, and Caesar dressing to make a quick and easy Caesar salad. And when she's spending the night in a hotel, she does the same. "When I travel, I always keep some food in the hotel to stir up if I need to," she said.

And she packs in the protein on match days.

Game day means serious business. "I always eat a huge breakfast on match days even though my stomach hates it," Williams said. For her most recent match, this meant heating up some fried rice in her room. Williams follows up her warm-up by eating sweet potatoes and rice—and prepping the energy drinks she needs on the court later that day. Her post-match refueling involves drinking water with electrolyte powder and eating more sweet potatoes, rice, and barbecue tofu.

It should come as no surprise that someone like Venus Williams is packing in the protein and nutrients whenever she gets the chance.

Becoming one of the top athletes in a sport is no small task, and you can't skimp on getting the vitamins and nutrients you need. That said, her meals sound pretty effing delicious. And we'd love for you to cook us that kale and grilled chicken salad sometime! It sounds amazing. No wonder your dad loves everything you cook for him.